Picker-check for looms.



No. 779,902. PATENTED JAN. 10, 1905.

S. H. BBVILLK I PIGKER CHECK FOR LOOMS.

APPLICATION FILED DEUJQ, 1903.

No. 779,902. I

UNITED STATES Patented January 10, 1905.

PATENT OFFICE.

SIDI H. BEVILL, OF ANDERSON, SOUTH CAROLINA, ASSIGNOR TO DRAPER COMPANY,OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

PlCKER-CHECK FOR LOOMS.

SBECIFIGATION forming part of Letters Patent No. 779,902, dated January10, 1905. Application filed December 18, 1903. Serial No- 185,615.

To all whom it may concern.-

Be it known that I, SIDI H. BEVILL. a citizen of the United States,residing at Anderson, county of Anderson, and State of South Carolina,have invented an Improvement in Picker-Checks for Looms, of which thefollowing description, in connection with the accompanying drawings, isa specification,

like characters on the drawingsrepresenting like parts.

This invention has for its object the pro duction of a novel, simple,and eflective pickercheck for looms whereby the outward movement orstroke of the picker is checked with maximum effect, the inward strokeof the picker operatively setting the check with minimum retardingaction.

The various novel features of my invention will be fully described inthe subjoined specification, and particularly pointed out in thefollowing claims.

Figure 1 is a front elevation, partly broken out, of one end of the layof a loom and its shuttle-box with one embodiment of my inventionapplied thereto, the check being shown in operation; and Fig. 2 is aleft-hand side elevation of the checking means and its support, the laybeing shown in section.

The lay A, longitudinally slotted at A, its shuttle-box B, picker P, andpicker-staff P, Fig. 1, may be all of known construction, it beingunderstood that each picker will be provided with a check such as shownin the drawings and to be described.

In the present embodiment of my invention a depending bracket 1 issecured by suitable bolts 2 (see dotted lines, Fig. 1) to the lay,preferably at its back, the bracket having a shelf 3 extended forwardbeneath the lay and having a threaded boss 5 to receive thethreadedshank of an eye 4:,the under side of the lay being cut out, as at 50, toreceive the upper end of the shank. At its lower end the bracketsupports a horizontal headed stud 6, projecting forward and forming afulcrum for the annular shoe or hub 7 of a bell-crank 8 9, the upperends of the arms being bent forward, as at 80 90, in the path of thepicker-staff P. Leather or other suitable bunters 1O 11 are secured,respectively, to, the bends 80 and 90 to be engaged by the staff on itsoutward and inward swing, the distance between the bunters beingsomewhat less than the amplitude of movement of the cooperating part ofthe staff. A rearwardly-bent lug 12 on the arm 8 of the bell-crank isadapted to engage the outer upright edge of the bracket 1 when thecheckis operatively set by the inward or picking stroke of the staff. Afriction member, shown as a flexible band or strap 13, is fixedly heldat its outer end on a pin 14 on the bracket above the shoe 7, thefriction member being carried down around the shoe and up at the inwardside thereof, as clearly shown in Fig. 1. One end of a spring 15 issecured to this end of the member 13, the other end of the spring beingattached to the eye 1, the contractile action of the spring drawing thefriction member tightly against the shoe, and thereby retarding oracting as a friction-brake upon the rocking movement of the bell-crank 89.

With the exception of the hunters the entire check is supported on thelay behind and out of the path of the staff, so that the latter canswing clear in the usual manner.

Supposing the parts to be in the position shown, when the picker and itsstaff are thrown inward to eject the shuttle from the box B the staffhits the hunter on arm 9 and quickly rocks the bell-crank in thedirection of arrow 16, Fig. 1. Such rotation of the shoe 7 acts, throughits frictional engagement with the member 13, to pull down the innerside thereof and stretch the spring 15, thereby relieving-the drag ofthe said member 13 on the shoe, as the movement of the member 13 will bein the direction of rotation of the shoe, so that the retarding actionof the friction device is minimized, and the stop 12 engages the bracket1 after the staff P reaches the end of its inward stroke, and the springcontracts. The check is then set in readiness to operate. On its outwardstroke the staff P hits the hunter on the arm 8, and the bell-crank isrocked oppositely to the arrow 16; but now the direction of rotation ofthe shoe acts against the fixedly-held end of the friction member 13, sothat the retarding action is at its maximum as the member 13 is heldstationary, and the shoe must rub over it. The picker is thus checked onits outward throw, as it should be, the friction device exerting itsgreatest effort to retard and bring the picker to a stop at the properpoint, while on the picking or inward stroke the picker is free to moveuntil it hits theinner hunter, and the retarding action of the frictiondevice is then the least.

By turning the threaded shank of the eye 4 up or down in the boss 5 thetension of the spring can be adjusted to accommodate the check tovarying conditions, and wear can thereby be compensated for.

By passing the bolts 2 through elongated horizontal slots 17 (see dottedlines, Fig. 1) in the bracket 1 the latter can be adjustedlongitudinally of the lay to bring the hunters in proper position withrelation to the pickerstafi.

Having described my invention, what I claim as new, and desire to secureby.Letters Patent, is

1. In a loom, the lay, a picker and its staff, a rocking check mountedon the lay and having portions located in the path of the pickerstafl, afriction-retarding device cooperating with the check on each stroke ofthe pickerstaff', and means to cause said check to exert its maximumaction on the outward stroke of the staff.

2. In a loom, the lay, a picker and its staff, a rocking check mountedon the lay and having portions located in the path of the pickerstaff',a friction-retarding device cooperating with the check, and meanspositively and directly actuated by return movement of' the picker toset the check.

3. In a loom, the lay, a picker and its staff, a rocking check mountedon the lay and having portions located in the path of the pickerstaff,an annular shoe movable with the check, and a relatively fixed frictionmember cooperating therewith to retard the operative movement of thecheck on each stroke of the picker-staff.

4. In a loom, the lay, a picker and its staff, a bell-crank pivotallymounted on the lay and having bunters to be engaged by the staff on itsoutward and inward strokes, and a frictionretarding device adapted toexert its maximum effect on the bell-crank on the outward stroke of thestaff.

5. In a loom, the lay, a picker and its staff, arocking check carried bythe lay and havinga bunter in the outward path of the staff,frictionretarding means for the check, including a flexible memberfixedly held at one end and yieldingly controlled at its other end, andmeans to set the check by or through return movement of the stafl.

6. In a loom, the lay, a picker and its staff, and checking means forthe picker-staff, comprising a bell-crank fulcrumed on the lay andhaving a concentric annular shoe, a frictionstrap cooperating therewithand fixedly held at one end, a spring connected with its other end, andbunters on the bell-crank in the path of the staff, outward movement ofthe latter causing the friction-strap to exert its maximum retardingeffect, inward movement of the staff causing the spring to stretch andthereby loosen the strap.

7 A check consisting of an oscillating member having similar armsextending in substantially opposite directions.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

SIDI H. BEVILL. Witnesses:

M. F. YoUNe, HENRY I-I. ORR.

